Abstract

Modern day electronics in automotive and industrial applications face the difficult task of passing strict CISPR-32 radiated emission standards due to a variety of factors. Higher density power supplies, faster high-speed digital circuits, smaller form-factor PCB layouts, and a desire to reduce cost through less shielding all contribute to increasing levels of electromagnetic interference. Clocking and Timing products are important contributors to system-level emissions performance, minimizing radiated emissions in particular is crucial for proper system design. This application note introduces the Texas Instruments (TI) CDC6C Bulk Acoustic Wave (BAW) oscillator family, explains the technical value proposition, and benchmarks the radiated emissions performance against three traditional crystal clock quartz oscillators.